[android help] Pop up window over android native incoming call screen like true caller android app

I am developing an broadcast receiver for in coming calls in android and on getting incoming calls I want to inflate an pop up over native incoming call screen.

I have made that code completed. But now problem is that in android jelly bean api level 17 when a phone rings the PHONE_STATE is coming as OFF HOOK and If I am calling an activity, it get called but the code under it doesn't get executed I am giving you the code.

My broadcast reciver

package com.example.popwindowonincomingcallscreen;

import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.telephony.TelephonyManager;
import android.util.Log;

public class IncomingBroadcastReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {

        Log.d("IncomingBroadcastReceiver: onReceive: ", "flag1");

        String state = intent.getStringExtra(TelephonyManager.EXTRA_STATE);
        Log.d("IncomingBroadcastReceiver: onReceive: ", state);
        if (state.equals(TelephonyManager.EXTRA_STATE_RINGING)
                || state.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)) {

            Log.d("Ringing", "Phone is ringing");

            Intent i = new Intent(context, IncomingCallActivity.class);
            i.putExtras(intent);
            i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            i.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
            Wait.oneSec();
            context.startActivity(i);

        }

    }

}

An the activity which I am calling

import android.app.Activity;
import android.os.Bundle;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.view.View.MeasureSpec;
import android.view.Window;
import android.view.WindowManager;
import android.widget.TextView;

public class IncomingCallActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {

        try {
            Log.d("IncomingCallActivity: onCreate: ", "flag2");

*/After this line code is not executed in jelly bean only/*

            // TODO Auto-generated method stub
            super.onCreate(savedInstanceState);

            getWindow().addFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE);
            getWindow().addFlags(
                    WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL);

            Log.d("IncomingCallActivity: onCreate: ", "flagy");

            setContentView(R.layout.main);

            Log.d("IncomingCallActivity: onCreate: ", "flagz");

            String number = getIntent().getStringExtra(
                    TelephonyManager.EXTRA_INCOMING_NUMBER);
            TextView text = (TextView) findViewById(R.id.text);
            text.setText("Incoming call from " + number);
        } catch (Exception e) {
            Log.d("Exception", e.toString());
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }

}

After

try {
    Log.d("IncomingCallActivity: onCreate: ", "flag2");
}

The code is not executing in jelly bean but in other version it is working.

I have tried almost all ways I can do. This code is displaying an translucent activity over native call screen and it doesn't block background controls like picking up the phone. But I want it like true caller. I have attached an snapshot how true caller is displaying an window on incoming call screen.

Please guide me through the way How can I achieve this functionality for android app.

This is how true caller works

.

stackoverflow.comm